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Diapason Audio Generator

Diapason Audio Generator

Audio generation since 2010

1 ratings
9 reviews
🔧 Utilities
🎵 Music
$1.99

Details

  • Released
  • Updated
  • January 26, 2010
  • November 2, 2025

Features

Developer

Fabien Lefebvre
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About

Generate various audio test tones, including sine waves, noise, and more. Combine up to four independent sources with phase control for each speaker. Monitor waveforms and output power with clipping indication.

✓Multiple test tone types (sine, square, triangle, sawtooth, noise)
✓Combine up to 4 independent audio sources
✓Phase switch for each speaker channel
✓Frequency sweeping and musical scale alignment
✓Narrow band noise generation
✓Waveform viewer
✓RMS power and clipping indication
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What's New in Diapason Audio Generator

2.8

November 2, 2025

Display has been optimised for various screen sizes.

User reviews

Most RecentHighest RatedLowest Rated

zuverlässiger praktischer Tongenerator

Den benutze ich schon seit den Anfangstagen des Appstore.
Einfach zu benutzen. Wurde bisher immer weiter entwickelt, wenn nötig.

Auch die anderen Apps des Entwicklers gefallen mir sehr gut.
H.E. BügelholzH.E. Bügelholz

Another fantastic App!

Works great! Bought this app just for fun after using the creators SPLnFFT noise level meter for an environmental noise study I did. Both apps are solid.
swensenaswensena

Simple et efficace

Sur iPod 4 cette appli fait ce qu'on lui demande et le fait bien : génération de signaux périodiques simples ou wobulés impeccable.
J-Luc16J-Luc16

Was good app; Won't work OS 5 or 5.01 V1.4 iPhone 4

I hope app designer can fix; this has been a great broadcast test tool till the OS change...Will do microphone levels into 600 Ohms.
swedishpassionsswedishpassions

Doesnt work in IOS 5

Worked great till i upgraded to IOS5
BrandywineAVBrandywineAV
See 4 more reviews

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FAQ

What audio test tones can Diapason generate?

Diapason can generate sine waves, square waves, triangle waves, sawtooth waves, white noise, and pink noise. It also offers narrow band noise for specific testing needs.

How many audio sources can be combined in Diapason?

You can combine up to 4 independent audio sources within Diapason. Each source can be sent to the left and/or right speaker, with individual phase switches for each channel.

Does Diapason have ads?

No, Diapason is ad-free. It is a paid application, and users can enjoy its full functionality without interruptions from advertisements.

What is the price of Diapason?

Diapason is available for a one-time purchase of $1.99. This grants you access to all its features without any further in-app purchases or subscriptions.

What devices is Diapason compatible with?

Diapason is compatible with iPhone, iPad, and iPod devices. It requires iOS 4+ and is optimized for various screen sizes.

How often is Diapason updated?

The latest version of Diapason is 2.8, last updated on November 2, 2025. Updates typically include feature enhancements and bug fixes to ensure reliable performance.

What is the age rating for Diapason?

Diapason has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content present.

Can I monitor the generated audio signal with Diapason?

Yes, Diapason includes a rough waveform viewer at the bottom of the first tab to monitor the generated signal. It also indicates the output RMS power and any clipping that occurs.